1. School of Economics and Trade, Hunan University, Changsha, China
2. School of Financial, Hunan University of Finance and Economics, Changsha, China
3. School of Management and Economics, Beijing Institute of Technology, Beijing, China
4. Center for Energy and Environmental Policy Research, Beijing Institute of Technology, Beijing, China
5. School of Economics and Management, Changsha University of Science & Technology, Changsha, China
6. Sustainable Development Research Institute for Economy and Society of Beijing, Beijing, China
7. Yangtze Delta Region Academy of Beijing Institute of Technology, Jiaxing China
8. Beijing Key Lab of Energy Economics and Environmental Management, Beijing, China